Vertiv Liebert® CRV CRD25 and CRD35 Row Based Cooling System User manual

Liebert® CRV CRD25 and CRD35

User Manual (Original Instructions)

25 kW and 35 kW, 50/60 Hz, Row-Based Cooling System

Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of this

manual to see if the issue can be resolved by following outlined procedures.

Visit https://www.vertiv.com/en-us/support/ for additional assistance.

The information contained in this document is subject to change without notice

and may not be suitable for all applications. While every precaution has been

taken to ensure the accuracy and completeness of this document, Vertiv

assumes no responsibility and disclaims all liability for damages result from use

of this information or for any errors or omissions.

Refer to local regulations and building codes relating to the application,

installation, and operation of this product. The consulting engineer, installer,

and/or end user is responsible for compliance with all applicable laws and

regulations relation to the application, installation, and operation of this product.

The products covered by this instruction manual are manufactured and/or sold

by Vertiv. This document is the property of Vertiv and contains confidential and

proprietary information owned by Vertiv. Any copying, use, or disclosure of it

without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of

the respective companies. Any questions regarding usage of trademark names

should be directed to the original manufacturer.

Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

TABLE OF CONTENTS

1 Important Safety Instructions 1

1.1 Conformity to EU Directives 1

1.2 Regulation (EU) 1

2 Product Overview 3

2.1 Model Nomenclature 3

2.2 Name Plate and Components 4

2.3 Component Location 6

2.4 Accessories 8

2.5 System Data 9

3 Pre-installation Preparation 13

3.1 Tools Required 13

3.2 Dimensions and Weights 14

3.3 Clearance Requirements 15

3.4 Inspecting the Unit 16

3.5 Moving the Packaged Unit 16

3.6 Unpacking the Unit 17

3.7 Removing the Unit from the Pallet 17

4 Installing in Enclosure Row 21

4.1 Leveling the Unit 21

4.2 Removing the Feet and Fixing the Unit (Optional) 22

4.3 Combining the Unit with Adjacent Cabinets 23

4.4 Location of the Main Grounding Point 24

4.5 Removing Compressor Fixing Plates 25

4.6 Installing Top Frame and Front Frame (Optional) 28

4.6.1 Installing the Top Frame without the Front Frame 28

4.6.2 Installing the Top Frame and the Front Frame 31

5 Piping and Refrigeration Connections 37

5.1 General Arrangement 38

5.2 Connecting Drainage Pipes 43

5.2.1 Top Connection 43

5.2.2 Bottom Connection 43

5.3 Connecting Water Supply for Humidifier 43

5.3.1 Water supply requirements for Humidifier 43

5.3.2 Top Connection 44

5.3.3 Bottom Connection 45

5.4 Connecting Gas Pipe and Liquid Pipe 45

6 Electrical Connections 49

6.1 Connecting Power Supply Cable 50

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

6.2 Connecting Communications Cables 52

6.2.1 General Arrangement 52

6.2.2 Connecting Communications Cable between Evaporator and Condenser 53

6.2.3 Connecting the Water Leakage Sensor (Optional) 53

6.2.4 Connecting the Static Pressure Sensor (Optional) 53

6.2.5 Connecting the Monitor Device to Unity Card (Optional) 54

6.2.6 Connecting Alarm Device (Optional) 54

6.2.7 Connecting Remote Temperature Sensors (Optional) 54

6.2.8 Connecting the Remote On/Off Device (Optional) 54

6.2.9 Connecting for Teamwork 55

7 Start-up 59

7.1 Charging Refrigerant and Lubricating Oil 59

7.1.1 Amount of Refrigerant and Lubricating Oil 59

7.1.2 Evacuating the Unit 62

7.1.3 Adding Lubricating Oil 64

7.1.4 Charging the Refrigerant 64

7.2 Start-up Procedure 65

7.2.1 First Start-up (or After Long Standstill) 65

7.2.2 Automatic Restart 65

8 HMI Display 67

8.1 Appearance 67

8.2 Main Functions 68

8.2.1 Home Page 68

8.2.2 Control Mode 70

8.3 Menu Structure and Parameters 71

8.4 Alarm Information 71

8.5 Teamwork Control 71

8.6 Third-Party Condenser Setting 72

9 Maintenance 75

9.1 Maintenance Schedule 75

9.2 Air Filters 76

9.3 Condensate Drain and Condensate Pump 77

9.4 Condenser 77

9.5 Fan 77

9.6 Electric Heater 79

9.7 Humidifier 81

9.8 Refrigeration Circuit 82

9.9 Dismantling the Unit 82

9.10 Troubleshooting 83

Appendices 85

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Appendix A: Technical Support and Contacts 85

Appendix B: Menu Structure 86

Appendix C: Alarm Table 91

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1 Important Safety Instructions

NOTE: Prior to moving, installing or servicing this unit, read the Safety Instructions sheet provided as a separate

document shipped with the unit.

1.1 Conformity to EU Directives

Fabbricante-Manufacturer-Hersteller-Fabricant-Fabricante

Fabricante- Tillverkare – Fabrikant – Valmistaja – Produsent

Fabrikant – Kατ ασκεναστ ηξ – Producent

Il Fabbricante dichiara che questo prodotto è conforme alle direttive Europea:

The Manufacturer here by declares that this product conforms to the European Union directives:

Der Hersteller erklärt hiermit, dass dieses Produkt den Anforderungen der europäischen Richtlinien gerecht wird:

Le Fabrican déclare que ce produit est conforme aux directives Européennes:

El Fabricante declara que este producto es conforme a las directivas Europeas:

O Fabricante declara que este produto está em conformidade com as directivas Europeias:

Tillverkare försäkrar härmed att denna produkt överensstämmer med Europeiska Uniones direktiv:

De Fabrikant verklaart dat dit product conform de Europese richtlijnen is:

Vaimistaja vakuuttaa täten, että tämä tuote täyättää seuraavien EU-direktiivien vaatimukset:

Produsent erklærer herved at dette produktet er i samsvar med EU-direktiver:

Fabrikant erklærer herved, at dette product opfylder kravene i EU direktiverne:

kατ ασÀευαστ ρjδηλνξ ι ϋτ ι τ ο παÃϋν πÃοϊϋν εβναι Àατ ασÀευαmỲνο αỳm ωνα mε τ ιjοδηγβεjτ ηj E.E.:

2006/42/EC

2014/30/EU

2014/35/EU

2011/65/EU with its amendment (EU) 2015/863

1.2 Regulation (EU)

Stationary air conditioners within the European market and operating with fluorinated greenhouse gases (F-gas, such as

R407C, R134a, R410A), have to comply starting from 1st Jan, 2015 with the F-gas Regulation (EU) No. 517/2014 which replaces

the previous Re. (EU) no. 342/2006, valid from 4th since July, 2007.

Note that, the refrigerants like R22 are not F-gas and their relevant regulation is Reg. (EU) no. 2037/2000.

The following notes have to be considered when operating with the above mentioned systems:

•Fluorinated greenhouse gases are covered by the Kyoto Protocol.

•The fluorinated greenhouse gases in this equipment must not be released into the atmosphere.

•The values indicated in Annex I and Annex IV of Regulation (EU) No 517/2014 concerning the global warming

potential (GWP) of some major F-gases or mixtures are given below:

•R-134a GWP 1430

•R-407C GWP 1774

•R-410A GWP 2088

1 Important Safety Instructions 1

Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

•Operators of the above mentioned applications, which contain fluorinated greenhouse gases, shall, using all

measures which are technically feasible and do not entail disproportionate costs:

a. Prevent leakage of these gases and as soon as possible repair any detected leakage.

b. Ensure that they are checked for leakage by certified personnel.

c. Ensure proper recovery of flourinated greenhouse gases by certified personnel.

d. In case of applications containing 5 tons CO2 equivalent, i.e. 2.4 kg of R410A (10 tons in case of

hermetically sealed system) or more of F- gases: certified personnel and Companies (according to Reg.

303/2008) provides regular leak testing (according to Reg. 1516/2007 and Reg. 1497/2007) and maintain

records of maintenance activities in a dedicated log book.

e. Recovery for the purpose of recycling, reclamation or destruction of the fluorinated greenhouse gases,

pursuant to Art. 8 of the Regulation shall take place before the final disposal of that equipment and, when

appropriate, during its servicing and maintenance.

•Operator, according to Regulation Article 2, point 8, means the natural or legal person exercising actual power

over the technical functioning of products and equipment covered by this Regulation. The State may, in defined,

specific situations, designate the owner as being responsible for the operator’s obligations. Where large

installations are involved, service companies are contracted to carry out maintenance or servicing. In these

cases, the determination of the operator depends on the contractual and practical arrangements between the

parties.

•Direct methods of leakage checking approved by the manufacturer (Reg. 1516/2007 and Reg. 1497/2007).

a. Gas detection device adapted to the refrigerant in the system; the sensitive of portable gas detection

devices (as a direct test method) shall be at least five grams per year.

b. Proprietary bubble solutions / soapsuds.

•Additional information located into a dedicated label of unit (Reg. 1494/2007)

a. Where fluorinated greenhouse gas is foreseen to be added to the equipment outside of the manufacturing

site at the point of installation, a dedicated label accommodates notation of both the quantity (kg) pre-

charged in the manufacturing plant and of the quantity charged at the installation site as well as the

resulting total quantity of f-gas as a combination of the above mentioned quantities, in a manner which

conforms to the legibility and indelibility.

Our split units are usually not pre-charged on factory, in this case the total quantity of refrigerant charged

in the unit has to be written in the relevant label, during the commissioning operation at the installation

site.

b. Our packaged units (not split) operating with f-gas are usually full charged on factory and the total amount

of refrigerant charge is already reported on the label. In this case, the label has no need of further written

information.

c. In generally, the above mentioned information has been located in the main nameplate of relevant unit.

d. For equipment with double refrigeration circuits, in regards to differentiates requirements on the basis of

the quantity of f-gas contained, the required information about refrigerant charge quantities has to be

listed separately for each individual circuit.

e. For equipment with separate indoor and outdoor sections connected by refrigerant piping, the label

information will be on that part of the equipment which is initially charged with the refrigerant. In case of a

split system (separate indoor and outdoor sections) without a factory pre-charge of refrigerant, the

mandatory label information will be on that part of the product or equipment which contains the most

suitable service points for charging or recovering the fluorinated greenhouse gas(es).

•Safety data sheets of f-gases used in the products are available on demand.

1 Important Safety Instructions

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

2 Product Overview

The Vertiv™ Liebert® CRV CRD25 and CRD35 row-based cooling units are specifically created and designed for small to

medium data centers, computer rooms, equipment rooms, and similar high heat density environments.

The CRD25 and CRD35 indoor units are used together with the CCD25 and CCD35 condensers. CRD25 and CRD35 provide

power to CCD25 and CCD35 and control their operation.

2.1 Model Nomenclature

Table 2.1 below and Table 2.2 below describe the model number for the Vertiv™ Liebert® CRV CRD25 and CRD35 cooling

units.

Model Number

1 2 3 4 5 6 7 8 9 10 11 12

C R D 2 5 5 - P D 0 0 A

Table 2.1 CRD25 Model Number Example

Digit Variable Description

1 C

Vertiv™ Liebert® CRV

2 R

3 D Air-cooled

4

25, 35 Model number

5

6 5 400 V, 3-phase, 50/60 Hz, CE

7 - Separator

8 P Reheat and humidifier

9 D Dual power supply

10 0 R410A refrigerant

11 0 Free digit

12 A- Z Revision

Table 2.2 CRD25 and CRD35 Model Number Digit Definitions

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

2.2 Name Plate and Components

Figure 2.1 Name Plate Location

Item Description

1 Front door

2 Name plate on the side cover of the slider electrical box (electrical box 2)

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Figure 2.2 Vertiv™ Liebert® CRV CRD25 and CRD35 Name Plate Information

Name Plate Information Description

UNIT Unit defined by 6 digits

MODEL Model defined by 12 digits

REFRIGERANT Type of the refrigerant

WEIGHT NET/GROSS Net weight and gross weight of the unit

REFRIGERANT CHARGE Amount of refrigerant charged on site

GWP Global warming potential

NOTE: Refer Table 2.1 on page3 and Table 2.2 on page3 for unit and model information.

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

2.3 Component Location

Figure 2.3 Vertiv™ Liebert® CRV CRD25 Component Location

Item Description Item Description

1 Side panel 8 Slider electrical box (electrical box 2)

2 Top panel 9 Compressor

3 Filter 10 Heat exchanger

4 Rear door 11 Humidifier

5 Bottom panel 12 EC fan

6 Leveling foot 13 Front door

7 Caster 14 Human machine interface (HMI) display

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Figure 2.4 Vertiv™ Liebert® CRV CRD35 Component Location

Item Description Item Description

1 Side panel 8 Slider electrical box (electrical box 2)

2 Top panel 9 Compressor

3 Filter 10 Heat exchanger

4 Rear door 11 Humidifier

5 Bottom panel 12 EC fan

6 Leveling foot 13 Front door

7 Caster 14 Human machine interface (HMI) display

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

2.4 Accessories

The accessories provided with the unit are listed in Table 2.3 below .

Component

Quantity

Remark

CRD25 CRD35

Remote temperature sensor (IRMS01T) 1 1

CAN bus cable 10 m x 2 10 m x 2

1 x CAN bus cable for remote temperature sensor.

1 x CAN bus cable for unit-to-unit (teamwork) communication

Water underfloor sensor (board) (CM20AR) 1 1

Bracket for water underfloor sensor 1 1

Cable for water underfloor sensor 4 m 4 m For connecting the water underfloor sensor (board).

Bottom drainpipe assembly 0.8 m x 1 0.8 m x 1 With Rc1/2 in. brass drainage connector

Rc1/2 in. brass humidifier pipe connector 1 1

Tie wrap 10 10

Plastic cap 4 4 For covering the unused holes on the plate.

M12 x 30 hexagon bolt 8 8 For fixing the cabinet.

M5 x 12 cross grooved countersunk head screw 5 5

L-shaped baying bracket 8 8

Cabinet guide rail (Ramp) 2 2 For removing the cabinet from the pallet.

User manual 1 1

Unit circuit diagram 1 1

EU declaration of conformity 1 1

UKCA declaration of conformity 1 1

Safety statement 1 1

Table 2.3 Accessories

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

2.5 System Data

Parameter CRD25 CRD35

Width mm (in.) 300 (11.8) 600 (23.6)

Input power AC 400V 3Ph+N+PE 50/60 Hz AC 400V 3Ph+N+PE 50/60 Hz

Total airflow rated/maximum m3/h (CFM) 5200/5500 (3061/3237) 8000/8500 (4709/5003)

Total fan power consumption maximum (kW) 1.215 1.234

Number of fans 6 8

Cooling capacity (kW) 24 35

Heating capacity (kW) 3 6

Minimum cooling capacity(kW) 0 0

Humidification capacity kg/h (lb/h) 2 (4.4) 2 (4.4)

Condensate pump capacity L/min at 5 m 3.5 3.5

Air filtration efficiency G4 G4

Table 2.4 Technical Specifications

Parameter Design Condition (Min.) Design Condition (Max.)

Unit entering air

Temperature °C (°F) 24 (75.2) 45 (113)

Relative humidity 17% 60%

Storage conditions Temperature °C (°F) -40 (-40) 70 (158)

Outdoor air

Without low ambient kit, temperature

°C (°F) -20 (-4)

48 (118.4)

Note: Unit remains operational up to

52 °C (125.6 °F) with reduced

capacity

With low ambient kit,

temperature °C (°F) -40 (-40) 48 (118.4)

Power supply tolerances

Voltage ± 10%

Frequency ± 3 Hz

Equivalent length of pipe between evaporator and condenser m (ft) - 120 (393.7)

Height between evaporator and

condenser m (ft)

Condenser placed higher than

evaporator - 30 (98.4)

Condenser placed lower than

evaporator - 8 (26.2)

Table 2.5 Operating Limits

NOTE: The operating limits refer to new units and those that have been correctly installed and serviced.

NOTE: If the altitude is higher than 2000 m (6562 ft), contact Vertiv Support.

NOTE: Low pressure transducer failure or low discharge superheat alarms may occur during startup at outdoor

temperatures below -35°C (-31°F), but they will clear up automatically and the unit will operate normally.

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Parameter CRD25 CRD35

Return air condition: 35 °C (95°F) DB, 24% RH; outdoor condition: 35 °C (95°F)

Net total capacity kW (kBtu/h) 24 (81.9) 35 (119.4)

Net sensible capacity kW (kBtu/h) 24 (81.9) 35 (119.4)

Indoor unit power input kW (kBtu/h) 6.42 (21.9) 9.07 (30.9)

System power input (indoor unit + outdoor unit) kW (kBtu/h) 7.08 (24.2) 9.50 (32.4)

Table 2.6 Performance Data

Model Fan

Speed

Average

Sound

Pressure

Level dB

(A)

Location

1/3 Octave

Band

Center

Freq

50 Hz 63 Hz 80 Hz 100

Hz

125

Hz

160

Hz

200

Hz

250

Hz

Sound

Pressure

Level dB

(A)

dB dB dB dB dB dB dB dB

CRD 25 100% 74.3

Front 77.2 17.6 26.2 29 35 39.5 39.4 44.7 52.3

Left 71.4 15.5 22.5 32.4 35.7 41.8 44.2 44.2 48.8

Right 71.4 16 22.1 31.6 40.1 40 45.6 45 50.4

CRD 35 100% 73.8

Front 77.1 18.2 30.1 33.2 34.4 36.8 39 44.4 51.5

Left 69.4 15.4 29.5 35.2 39.2 38.4 39.4 42.1 46

Right 70.7 19.2 29.6 35.1 35.9 42.1 40.2 42.1 46.4

Table 2.7 Sound Level (50 Hz to 250 Hz)

Model Fan

Speed

Average

Sound

Pressure

Level dB

(A)

Location

1/3 Octave

Band

Center

Freq

315

Hz

400

Hz

500

Hz

630

Hz

800

Hz 1 kHz 1.25

kHz

1.6

kHz

Sound

Pressure

Level dB

(A)

dB dB dB dB dB dB dB dB

CRD 25 100% 74.3

Front 77.2 67 69.1 62.1 63.8 66.4 66 66.7 66.3

Left 71.4 62.5 64.4 58.7 61.2 62.4 59 59.6 59

Right 71.4 60.9 62.3 57.7 61.7 62.7 59.7 60.2 60.6

CRD 35 100% 73.8

Front 77.1 62.7 65 57.7 60.1 62.6 66.7 67.5 67

Left 69.4 57.4 60.8 52.6 55.8 58.1 59.2 59.9 59.2

Right 70.7 56 59.2 55.3 58.9 60.5 60.6 61 61.2

Table 2.8 Sound Level (315 Hz to 1.6 kHz)

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

Model Fan

Speed

Average

Sound

Pressure

Level dB

(A)

Location

1/3 Octave

Band

Center

Freq

2 kHz 2.5

kHz

3.15

kHz 4 kHz 5 kHz 6.3

kHz 8 kHz 10 kHz

Sound

Pressure

Level dB

(A)

dB dB dB dB dB dB dB dB

CRD 25 100% 74.3

Front 77.2 65.6 68.7 63.8 61.7 58.6 55.9 51.8 47.3

Left 71.4 58.6 59.3 55.4 51 47.2 43 38.7 33.1

Right 71.4 59.9 60.8 56.9 52.5 48.8 45.2 41.4 36.3

CRD 35 100% 73.8

Front 77.1 68.2 70.3 65.9 64.2 61 58.8 55.4 52.6

Left 69.4 59.4 60.5 57 53.3 49.2 45.1 40.3 34.8

Right 70.7 61.6 61.9 58.3 54.5 50.3 46.5 41.7 37

Table 2.9 Sound Level (2 kHz to 10 kHz)

NOTE: Measurement Standard: EN 13487

NOTE: The sound level is measured in free field at three locations, each of which is 1 m (3.3 ft) high and 2 m (6.6 ft)

away from the air conditioner, with fans in operation.

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

3 Pre-installation Preparation

WARNING! Risk of top-heavy unit falling over when improperly lifted or moved. Improper handling can cause

equipment damage, injury or death. Read all of the following instructions and verify that all lifting and moving

equipment is rated for the weight of the unit before attempting to move, lift, remove packaging from or

prepare the unit for installation.

CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause injury. Only properly

trained and qualified personnel wearing appropriate, OSHA-approved PPE should attempt to move, lift,

remove packaging from or prepare the unit for installation.

NOTICE

Risk of passageway interference. Can cause unit and/or structure damage. The unit may be too large to fit

through a passageway while on or off the skid. Measure the unit and passageway dimensions, and refer to the

installation plans prior to moving the unit to verify clearances.

NOTICE

Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to fit

below the skid and/or unit to prevent exterior and/or underside damage.

NOTICE

Risk of improper storage. Can cause unit damage. Keep the unit in its original package, upright, indoors and

protected from dampness, freezing temperatures and contact damage.

3.1 Tools Required

The tools required are listed in Table 3.1 below . These tools are not provided with the unit.

Name of Tools Name of Tools

Electric hand drill Adjustable wrench

Slotted screwdriver Cross head screwdriver

Stepladder Forklift

Level Wire cutting pliers

Claw hammer Diagonal cutting pliers

Insulating shoes Antistatic gloves

Electrician knife Cable ties

Insulating tape Insulating gloves

Crimping pliers Heat shrinkable tube

Insulated torque wrench Torque screwdriver

Multimeter Clip-on ammeter

Table 3.1 Tools Required

3 Pre-installation Preparation 13

Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

3.2 Dimensions and Weights

Figure 3.1 Unit Dimension

Model Unit Dimensions (Width x

Depth x Height) mm (in.)

Shipping Dimensions (Width x

Depth x Height) mm (in.) Net Weight kg (lb) Shipping Weight kg (lb)

CRD25

300 × 1132 × 2000

(11.8 x 44.6 x 78.7)

776 x 1276 x 2228

(30.6 x 50.2 x 87.7)

265 (584.2) 348 (767.2)

CRD35

600 × 1146 × 2000

(23.6 x 45.1 x 78.7)

776 x 1276 x 2228

(30.6 x 50.2 x 87.7)

335 (738.5) 426 (939.2)

3 Pre-installation Preparation

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Vertiv™ Liebert® CRV CRD25 and CRD35 User Manual

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Vertiv Liebert® CRV CRD25 and CRD35 Row Based Cooling System User manual

Vertiv Liebert® CRV CRD25 and CRD35 Row Based Cooling System User manual

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